Answer:
A)
Explanation:
Both answers A) and B) are considering words that can be correctly used in this sentence but the most appropriate answer A) because it is the best fit for it since we have the fact in the sentence.
- ''plastic does not degrade'' is a fact that is proved by the science and with the use of it, people can really understand and see why and how the claim that ''Plastic pollution is one of the most serious threats to the ocean'' is being supported.
